


摘要:為了研究大蒜多糖(GPA)對(duì)機(jī)體組織的藥理作用,以小白鼠為研究對(duì)象,試驗(yàn)分5組:正常對(duì)照組、模型對(duì)照組及3個(gè)治療組,除正常對(duì)照組外,其他4組采用CCl4灌胃的方法建立小鼠化學(xué)性肝損傷模型,3個(gè)治療組分別用100、200、400 mg/kg不同濃度大蒜多糖對(duì)小鼠進(jìn)行治療,給藥7 d后,摘取小鼠肝臟、脾臟,進(jìn)行組織學(xué)觀察,并與CCl4模型組及正常對(duì)照組進(jìn)行比較。結(jié)果在CCl4模型組中,小鼠肝臟發(fā)生廣泛的顆粒變性和水泡變性,中央靜脈重度淤血等病變。經(jīng)大蒜多糖治療后,小鼠肝臟水泡變性消失,顆粒變性減少,中央靜脈淤血消失;脾臟發(fā)生廣泛的淋巴細(xì)胞增生。結(jié)果表明大蒜多糖對(duì)CCl4致小鼠化學(xué)性肝損傷具有保護(hù)作用,并能改善機(jī)體的免疫功能。
關(guān)鍵詞:大蒜多糖;CCl4;小鼠;肝損傷
中圖分類號(hào):TS201.2文獻(xiàn)標(biāo)識(shí)碼:A文章編號(hào):0439-8114(2011)16-3355-03
The Effect of GPA on the Liver and Spleen of CCl4 Induced Liver Injury Mouse
ZHANG Xia1,CHENG Fu-sheng2
(1. College of Life Science and Technology, Gansu Agricultural University, Lanzhou 730070,China;
2. Lanzhou Institute of Animal Sciences and Veterinary Pharmaceutics, the Chinese Academy of Agricultural Sciences / Key Laboratory of New Animal Drug Project of Gansu Province, Lanzhou 730050,China)
Abstract: 5 groups of mice were used to study the pharmacological action of garlic polysaccharide(GPA) on the organisms. Except normal control group, the model control group and other three treating groups were taken carbon tetrachloride(CCl4) by intragastric administration to condstruct liver injury mice model. The mice in three treating groups were treated with GPA at three different concentration of 100、200、400 mg/kg. After seven days, the liver, spleen were taken out for histological observation and compared with the model group and the control group. The results showed that there were oberserved extensively granular and vesicular degeneration on the liver and severe congestion in central venous of the mice in the model group. After treated with GPA, the vesicular degeneration disappeared, granular degeneration decreased, congestion in central venous disappeared and extensive proliferation of lymphocyte occurred in spleen. The results indicated that GPA had protective effect on the liver of CCl4 induced liver injury mice, andcould improve the immune function of animal's body.
Key words: garlic polysaccharide(GPA); carbon tetrachloride(CCl4); mouse; injured-liver
多糖是廣泛存在于動(dòng)植物及微生物體內(nèi)的天然大分子物質(zhì),近十年已陸續(xù)發(fā)現(xiàn)多種動(dòng)植物多糖和真菌多糖,對(duì)化學(xué)性、實(shí)驗(yàn)性等肝損傷有保護(hù)與治療作用,能減弱肝病理損傷[1]。現(xiàn)代醫(yī)學(xué)、營養(yǎng)學(xué)、預(yù)防醫(yī)學(xué)的研究表明大蒜有保護(hù)肝臟、降血脂、預(yù)防動(dòng)脈硬化、防治冠心病、防治腦血栓、消炎殺菌、抗腫瘤、提高機(jī)體免疫力和延緩衰老等作用[2,3]。大蒜多糖是從大蒜中提取的有效成分。近年來的研究表明,大蒜多糖(GPA)與化學(xué)性肝炎的損害和機(jī)體免疫應(yīng)答有關(guān)。有學(xué)者給小鼠口服GPA未測出LD50,表明GPA安全無毒[4]。
利用CCl4可以誘發(fā)小鼠化學(xué)性肝損傷模型[5],四氯化碳作為經(jīng)典的親肝毒物,主要經(jīng)呼吸道和消化道進(jìn)入體內(nèi),人和動(dòng)物均可導(dǎo)致肝損傷。……